Memorial flag cases

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mickyd
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Post by mickyd »

JPG40504 wrote:The Miter angles are ......

MickyD I am surprised at you!(as is Paul!):D
Not as surprised as I was. Hey, I'm ill today.....first sick day off work in years. Believe I inhaled too much sodium chloride yesterday. (seriously). My throat feels like someone cut out my tonsils with a dado blade then sanding my throat with a 36 grit belt sander.:eek:
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JPG
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Post by JPG »

mickyd wrote:Not as surprised as I was. Hey, I'm ill today.....first sick day off work in years. Believe I inhaled too much sodium chloride yesterday. (seriously). My throat feels like someone cut out my tonsils with a dado blade then sanding my throat with a 36 grit belt sander.:eek:

Spoken like one who really knows what a dado blade feels like!]supposed[/B] to drink that ferric chloride when you were through with it!:D

P.S. Get well soon!!!!
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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charlese
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Post by charlese »

mbcabinetmaker wrote:.... I would then need to install the glass in a saw groove and come up with some type system to assemble other than just glue and clamps. Anyone have ideas on some type hidden fastener?

Although not knowing the dimensions of the frame boards, I will assume they will be 1" X 4 1/2" X length. The reference I found called for biscuits at the apex and 18 gauge brads from the base into the sides. The brads are then filled and hidden.

If you can make a jig with eccentric (cam) clamps then you can probably use biscuits all the way around. Band clamps? maybe! instead of eccentrics.
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nuhobby
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Post by nuhobby »

mickyd wrote:Not as surprised as I was. Hey, I'm ill today.....first sick day off work in years. Believe I inhaled too much sodium chloride yesterday. (seriously). My throat feels like someone cut out my tonsils with a dado blade then sanding my throat with a 36 grit belt sander.:eek:
I had that bug here in Indy about 10 days ago. It will pass, but dang! it was not fun.
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dusty
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Post by dusty »

mickyd wrote:You know the old saying dusty....it's better to have thought and to have thought wrong than to have never thought at all!! :D (author mickyd, circa 2010)
Given the numbers that have been stated here - I do not believe this can be built to specification. It can certainly be built but there has to be some negotiation with the numbers.

By my calculations, if the 45 degree miter is to be used along with the 13 3/8" sides, the other two miters will be 22.5 degrees and the base of the case will be 18.92" long.

I will be watching to see what it is that I have not retained from high school math class.

I would reinforce the corners with splines (a jig is in order - actually two jigs).
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horologist
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Post by horologist »

mbcabinetmaker wrote:I have an opportunity to make a bunch of flag cases for a company that sells to some military stores. From the measurements furnished the miters are 68.8 degrees on the bottom and 47.7 degrees on the top. I need make the stock, cut the groove for the glass and dado for the back then stain and finish the stock in lengths before cutting. I would then need to install the glass in a saw groove and come up with some type system to assemble other than just glue and clamps. Anyone have ideas on some type hidden fastener?


Mark,

I made a couple of these some time ago as I wasn't impressed with the quality or price of the boxes available at the time. Only glue on the mitered joint on top and four screws through the base to hold the two bottom joints. Splines are decorative but structurally speaking not necessary in this case.

Troy

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JPG
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Post by JPG »

dusty wrote:Given the numbers that have been stated here - I do not believe this can be built to specification. It can certainly be built but there has to be some negotiation with the numbers.

By my calculations, if the 45 degree miter is to be used along with the 13 3/8" sides, the other two miters will be 22.5 degrees and the base of the case will be 18.92" long.

I will be watching to see what it is that I have not retained from high school math class.

I would reinforce the corners with splines (a jig is in order - actually two jigs).

Your high school math is correct!

I believe the dimensions specified are relevant to the dimensions of a properly folded flag. The angles are not a consideration.

However, that flag is not an immovably firm substance so I doubt those exact measurements are 'critical'.

I still think dimension negotiations are in order!!!!

Troy: I be curious what dimensions yours were.

Notice that if the bottom is as troy pictures, the bottom is also a 45 degree joint.

P.S. If the bottom were nested inside the sides to eliminate exposed end grain(on the sides), ALL miters would be 45 degrees on all pieces.
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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mbcabinetmaker
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Post by mbcabinetmaker »

Ok I built a jig today to make the 68.8 degree cuts.




[ATTACH]10151[/ATTACH]

Added 23.8 degrees to 45 to give the needed 68.8.






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They came out pretty good. This is just some scrap alder that I am using to jig up with and it is not all the same thickness but doesn't matter on the angles.









[ATTACH]10154[/ATTACH]

However the 45 degree at the top did not pan out. Must be a flaw in Sketchup. :D :D








[ATTACH]10155[/ATTACH]

Adjusted to 43 degrees and I believe I am ready to cut some oak as soon as a router bit comes in that I ordered to do the profile. I have an order for 14 of the boxes if my prototype passes inspection.





Thanks for all the tips and advice. I decided on a #0 biscuit in the top and screws in the bottom. I would like to make the design like horologist posted but I am going by the pictures sent by the customer.
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JPG
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Post by JPG »

Did you tell 'sketchup' the lengths, or the angles?

If you gave it the lengths, the 68.8 is correct! However the apex is not 90. It is 95.2 which would require a miter angle of 42.4!

With 68.8, 42.4, base 19 3/4, the sides are 13.373!

I would think that be close enough.:cool::D
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Goldie(Bought New SN 377425)/4" jointer/6" beltsander/12" planer/stripsander/bandsaw/powerstation /Scroll saw/Jig saw /Craftsman 10" ras/Craftsman 6" thicknessplaner/ Dayton10"tablesaw(restoredfromneighborstrashpile)/ Mark VII restoration in 'progress'/ 10E[/size](SN E3779) restoration in progress, a 510 on the back burner and a growing pile of items to be eventually returned to useful life. - aka Red Grange
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dusty
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Post by dusty »

I am glad that you have this nailed and this has been a fun excursion through a trigonometry and geometry refresher. Where were these interesting and useful exercises when I was in the classroom. The ones in my text books sure are not this much fun.

Yes, I have been having fun but I have not come up with a solution that mimics any of the numbers used in this thread.

Please, when you are finally through with this project, post the dimensions. I need to grade my work.
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